It's amazing what you find on the streets.
I found (on Bond Street) a beautiful silver cufflink. Just one. So it's only valuable to the owner who lost it (get in touch, no questions asked!).
But such beauty. Deep black. Either Jet, or Obsidian. With ever so gentle vesicules running through it. Porphyritic perhaps.
Fit for the King of Chavs!
If no-one claims it, maybe I'll auction it off on ebay for charity.